Bird waterer base



FIG. 1 is an upper perspective view of a bird waterer base showing the new design;

FIG. 2 is a lower perspective view of the bird waterer base;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof; and,

FIG. 5 is a side view thereof, where the front view, opposite side view and back view are identical to the side view in FIG. 5.

The broken lines depict unclaimed features of the bird waterer base that form no part of the design claim but are shown for purposes of illustration. 

CLAIM The ornamental design for a bird waterer base, as shown and described. 